Hon. Samuel Atandi started school at Upanda Primary School in 1986 and completed in 1993 when he sat for his Kenya Certificate for Primary Education. He then proceeded to Ambira High school from 1994-1997 where he sat for his Kenya Certificate of Secondary Education. For undergraduate, he went to Egerton University from 1995-2005 where he undertook a Bachelor of Arts and gradutaed with second class honors division.

From 2005 to 2006 he worked at Standard Chartered Bank (K) as a Sales Representative, Consumer Banking. He was then promoted to Sales Manager, SME Banking where he held this position from 2006-2007. He then moved to Bank of Africa (K) Ltd where he worked as a Relationship Manager, Institutional Banking from 2008-2009. He moved to NIC Bank where he worked as a Senior Relationship Manager from 2009-2015. From 2015 to 2017, he worked as a Director, Institutional and Transactional Banking at National Bank of Kenya. He is currently a Member of Parliament, Alego Usonga Constituency as from 2017 to date. He is currently a member of Departmental Committee on Finance and National Planning.